Camera



Feb.12, 1929. 1,701,492 A. L.'CHAPUIS will( [Uilm JNVENTOR j. Z.. Cha/,mds

ATTQRNEY Feb. l2, 1929. l,701492 AT L. cHAPUls summa Filed Augiv, 192s 2 sheets-sheet :eA

' `\J1WENT0R i 2 y l L fha-p m19 ATTORNEY l Patented Feb.. l2, 1929.'

UNITED STATES raient oFFicE..

ACmrLE L. CHAPUIS, OF NEWYORK, N. Y.

CAMERA.

The object of my invention is to provide simple and inexpensive means to prevent double exposures of the lms or sensitive surfaces in cameras, so that when an exposure has been made a second exposure on the same sensitive surface cannot be made until the,

Fig. l is a similar view with parts in different position;

Fig. is a section on line 5, 5. in Fig. 2;

Fig. 6 is a partly sectional front view with parts in an' operating position for a snap shot;

Fig. l is a. similar view showing the parts in position for a time exposure; and

Fig. 8 is a detail perspective view.

Similar numerals oi' reference indicate .corresponding parts in the several views.

l have illustrated ny improvements in connection with an ordinary type oi box camera, l indicating the camera box having lens 2 and an oscillatory shutter at 8 provided with the usual aperture Ll. The shutter is pivoted at 5 on the box.. .at -6 is a usual shutter controller or nger piece pivoted at 7 and provided with spring 8 engaging the shutter'at 9 tor operating it in conjunction with stop 10 on the box and` stops 11 and 12 on the shutter, in a usual way. A controlling member or lever 13 lior the nger piece is pivoted'on the box at 11i and normally drawn by spring 15 connected with said member and with the box. The member 13 has spaced stops 16 and -17 adapted to cooperate with a projection or pin 18 on controller or finger piece 6 to reta-in the latter locked, either to the right or the left in the drawing, to prevent operation of the controller un- 59 less the film has been properly wound. The` member 18 ha's an abutment 19 and an adjacent inclined surface 20 leading thereto for cooperation with a pin or projection 421 on an arm 22 pivoted on the box at 23. In Fig.

1 the parts are shown in a locked position and in Fig. 6 in the released positionfor operation of the finger piece and the shutter.

The arm 22 is operative by means of a lever 24, pivoted at 25 on top 1b of the box, the lever having a reduced end 21.11'U1 located in a-hole 22a in arm 227 (Fig. 8), for operating the latter. The outer end of lever .2e opcrates ina recess 1c in the front wall 1d of the box and said lever is shown provided with a curved -shield 26 that operates against a curved surface 27 on wall 1d to exclude light from the camera, (liig. 3).

A dog .28 is pivoted onf the top 1b at 29 and normally spring pressed toward lever 2l in position to be operated by the film winder or spindle 30, journaled on the camera top in a usual way, to actuate the lever. Spring 31 connecting dog 28 with the camera top normally retains the dog in the'position shown in F ig. 3 respecting lever 24. The film winder has the usual wing 530,21 for operating the spool of the film and in addition is provided with a projection 30h adapted to engage the free end 28a of ydog 28 when rotated to. wind the film, the end 28a of the j dog projecting` into the opening 1e in the camera top in which the film winder rotates. When the lilm winder is rotated in the direction of the arrow in F ig. 3 its projection 3()b will tilt dog 2S, (as dotted in Fig. il), to .r

shift lever Sel from the position shown in F ig. 3 to the position shown in Fig. 4, to cause projection 21 to engage abutment 19. `When the film winder releases the dog 28 the latter will be shifted by spring 31 out of the path of opening le and will rest against lever 24, as in full lines in Fig. 4, until said lever returns to the normal position shown in Fig. 3, the lever and dog assuming the position. shown in said figure. A stop 32 on the camera top may be engaged by lever 241 so that dog 28 will not rotate too far, (Fig. 4).

rlhe member 13 is provided with a projectionllf that is adapted to be engaged by a lug or projection 3a on shutter 3, which may be stamped from saidshutter, whereby When said lug engages projection 13b the member 13 will be tilted to release its abutment 19 from pin 21, (Fig. 6), as during rotation of When the parts are in the position shownv I in Fig. 1 the finger piece 6 Will be locked from operation and Will only he released When the film Winder is rotated to Wind a film, Whereupon the dog 28 Will tilt lever 24,l thereby causing arm 22 to be shifted so that its Aprojection 21 Will slide on surface 20 and engage the abutment 19 of member. 13, vthereby tilting'the member to release the stop 16 from pinl 18, as in Fig. 6. In such position of the parts piece 6 may be shifted to the left in Fig. 6, whereupon the shutter Will operate for a snap shot. The pin 18 of finger piece 6 then will rest against the stop 17 and upon the next rotation of the film Winder pin 21 Will ride up the inclined surface 20 and stop behind theabutment 19 to retain member 13 and free the pin 18 from stop 17 so that finger piece 6 may be shifted to the right for reversely shifting theshutter. Each time the shutter has been operated the member 13 Will be pulled by spring 15 to cause one ofits stops 16`or 17 to engage the pin 18 of the finger piece to prevent operation of the finger piece until the spool Winder hasl been rotated to Wind the spool and to cause the pin 21 to ride up on inclined surface 20 of member-13 to engage abutment 19 and retain one of the stops 16 or 17 out of cooperation -With pin 18. In case a time exposure is to be made the slide piece 33 Will be pulled out in a usual Way to engageone of the stops 3b or 3c of the shutter to retain the latter for time exposure With the finger piece 6 free from member 13 because the latter then Will be retained by lug 3a in enga ement With projection 13" so that pin 18 is ree from the stops of member 13, as in Fig. 7

By means of my improvements assurance is had that but one exposure Will be made on the same sensitive surface of a lm because after the finger'piece has been operated for an exposure it cannot again be operated untilf the film Winder has been rotated to Wind the ilm and cause release of member 13 from the projection 18.

The arm 22 is shown projecting through a slot 34 in the top of the front portion of the box in position to be observed. When arm '22 is at the left itindicates that controller 6 is locked, (Figs. 1 and 2), and When the arm 22 is at the right hand side of the slot, (Fig.

6), it indicates that' the controller is unlocked for operation.

' Havingnow described my invention What v ber,

I carrying the projection and a lever coo and the controller to restrain the latter, aflm Winder, and means operative by the lilm Winder to' release the said member from the controller to v permit operation of the shutter, the movable Inember being provided With a projection and the shutter having a lug to engage the same to release the member from Athe controller to permit operation of the latand means operative by said Winder to operate said projection to actuate the member e to release the' latterv from the controller and engage the abutment With the projection to retain the member released from the controller. y 3. A camera comprising a shutter, a controller to operate the same, a movable member, means cooperative between the member and #0 the controller to restrain the latter', the member vhaving an abutment and an adjacent inclined portion, a projection to engage said inclined portion and said abutment, an arm to operate said projection, a film Winder, and means operative by said Winder to actuate said arm to cause the member to release the controller. y

4. A camera as set forth in claim 3, in Which the means to actuate the arm includes a movable dog in position to be operated by the Elm Winder to actuate the arm. y

5. A camera comprising a shutter a controller to operate-the same, a movab e member having spaced stops, the controller having a projection to engage said stops to retain the controller in different positions, a film Winder, and means operative by the film taln the controller indifferent positions, a 1.20 j

film Winder, `the member having an abutment and an operating surface, a projection to engage said surface to actuate the member for engagement' of its abutment with said projection, and means operative by the Winder to actuate the projection including an arm rative with the arm and operative bypethe'- Winder.

8. A camera comprising a shutter, a controller to operate the same, a movable member having spaced stops, the controller having a projection to engage said stops to retain the controller in different positions, a

5 film Winder, the member having an abutment and an operating surface, a projection to engage said surface to actuate the member or engagement of its' abutment with said proi jection, means operative by the Winder to actuate the projection, including an arm carrying the projection, a lever cooperative with the arm, and a spring actuated dog operative by the Winder to actuate the lever.

ACHILLE L. CHAPUIS. 

